* {
    margin: 0;
    padding: 0;
}

ul,ol {
    list-style: none;
}

a {
    text-decoration: none;
}

body {
    overflow-x: hidden;
    font-size: 12px;
    color: #333;
}
a{
    color: #333;
}
table{
    border-collapse: collapse;
}
.box-center{
    margin-left: auto;margin-right: auto;
}
.txt-center{
    text-align: center;
}
.X-Y-center{
    position: absolute;
    top:50%;
    transform: translateY(-50%);
}
.absolute{
    position: absolute;
}
.relative{
    position: relative;
}
.before::before{
    content: "";
    display: table;
}
.after::after{
    content: "";
    display: table;
}
.fl{
    float: left;
}
.fr{
    float: right;
}
.white{
    background-color: #fff;
}
.gray{
    color: #666;
}
.inline-block{
    display: inline-block;
}